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Curious to hear from others as to exact location of ball bearing that is pressed on jackshaft. I have serviced a number of local TCats and replaced that bearing. In some, that bearing is against the shoulder, in others it is about .020-.030" away from shoulder. It's like it was pressed on to...

I'm looking for experiences/comments/knowledge about occasionally using C16 to speed run/drag race 998s. I've searched TY and found some info but looking for more. I occasionally like to speed run/drag race (run-what-you-brung, LOL). I currently have PEFI Stage 4 (4-bar 330HP pump gas tune)...

Just FYI - While doing pre-season maintenance, I noticed a few drops of what turned out to be brake fluid right below the caliper housing/brake pad area. Thought it would most likely be just a seal ring (square o-ring) problem. Pulled the outer side of the housing off, removed piston, and...

Arctic Cat just announced new 858 CC twin for Catalyst chassis. 11% more power than previous Cat 800s and 4% lighter than 600. Based on 2023 800 being advertised at 166 HP, this new engine should have about 183 HP in stock form. It is also mounted a tad lower in chassis than 600.

FYI - June 15 through July 15 PEFI is offering 15% off all snowmobile parts and ECU flashes.

I am building a new track (1.25" Rip2 137") so I wanted to explore studding weights between Woodys Megabite, Stud Boy Lake Racer, Woodys double alum plates, Stud Boy ProLite backers (both double and single). I was curious about difference between 1.575" Megabite compared to 1.625" Stud Boy...

For sale Klotz 0W-40 SnowX Estorlin in quart bottles. 46 quarts available as of today. 10 qts per case. 4 sealed cases available. Commoningly being sold at $18-$25 per quart. Asking $12/quart. Buyer pays shipping.

Looking for 3" TD Turboforce muffler. Must have O2 bung welded in. Please contact me via PM here on TY.

I know this isn't the classified section but does anyone have a 3" TD Turboforce muffler for sale?

Asking question/opinions: for those that have had both BOP MPS and GSE Power steering on same (or nearly identical) sled, how would you compare the steering effort for each? Nearly same? Or, which one was easier at average trail speed? Which one is easier on tight twisty trails?

Here is one from this past weekend from a friend of mine. I'm glad this happened in parking lot. Minutes earlier he was out on the lake running over 100 MPH! Looks like it maybe it was cracked for a while before it broke. Took out the whole chain case (both sides). Ruined the caliper and...

I thought I'd ask all you expert tuners here what are classic symptoms of a MAP sensor not performing as designed? Erratic idle AFR? Erratic WOT AFR? Erratic idle RPM? Erratic AFR at part throttle cruise? I believe I've read some here on TY have had to get their MAP sensors replaced by both...

What would it take to retrofit a non-EPS sled (2017 ProCross chassis) to EPS?

What is the true additional weight attributable to EPS? For the same exact sled, with the same amount of gas, same track, same studs, all exact same, what is the difference in weight between one with EPS and one without?

Just wondering if anyone has experienced a situation where a 998 has been sitting in storage all summer (since April) and when you go to crank it now (Nov) there seems to be no compression, ie motor "skips" when cranked, like 1 or more cylinders has no compression? Once started, motor seems to...

Wondering if anyone else went this past weekend? I know Clutchmaster, Cannondale, Beerman were up in the area. Races had to get moved to Friday night due to prediction of rain/melt-down for Saturday which proved true. Saturday was mostly drizzle/light rain/sleet all day. Turned into major...

I have installed 3 of these kits in the past week. These are some comments/concerns from my experience. I did call TD and gave them this feedback. They seemed to take it seriously. The kit does serve it's purpose but there could be some improvements IMO. A. Regulator is Turbosmart and...

Looking for input to correct high AFR on 18 TCat, PEFI Stage 3 280HP. Freshly rebuilt engine. Sled is 18 TCat PEFI Stage 3. PEFI fuel pump upgrade kit (returns to basket). Fuel pressure 43.5 psi key on engine not running. Turbosmart BOV. Stock air box. D&D Tech2 2.5" PM. 95-96 octane gas...

I just installed an AEM AFR gage on a Stage 3 TCat. What should the hot idle AFR be? When first started, the gage comes on line at 13.7. As it continues to run the AFR goes up and up and up until it goes out of range high side. The sled runs perfect in the test field beside my shop. It...

This week while doing my most recent 998 complete engine rebuild for a customer, while I was installing the fuel injector rail with the 3 fuel injectors, I noticed staining/dirt/debris around the several of the fuel injector holes in the throttle bodies. I could tell several of the injectors...